Regarding the electric step not going in and out properly. Try this.
Open the door and stand outside. Look in the lower right corner. There is a bolt that pushes a button in and out. By hand, push that button ALL THE WAY in and let it spring out. Watch your shins if the step moves. If the button does not spring out, it is faulty. Spray WD-40 or equivalent in the switch to free up the internal mechanism. If no luck, then replace the switch.
If the step works well by hand but not with the door, the bolt needs to be adjusted to push the switch in further.
If the step does not react to you pushing the switch by hand, then flip the left side wall switch to the opposite position and repeat. Remember that little wall switch is labelled backwards. "On" means "Off". When "On" it means the step should stay down all the time regardless if the door is open or closed. At least that is how mine is labelled. It can be confusing.
If still nothing happens, lay on your back on the ground and clean the electrical contacts to the switch. Then repeat. Be careful when on the ground. Make sure your body stays clear in case the step decides to move down. You don't want it pinning you under the rig. That would be embarassing.